Music-roll.



F. L. McCORMlCK.

MUSIC ROLL.

APPLICATXON FILED DEC. 2!. 1912.

1,196,794. I PatentedSept. 5, 1916.

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FRANK L. MCCORMICK, OF NORTH TONAWANDA, NEVV YORK, ASSIGNOR TO THERUDOLPH WURLITZER MANUFACTURING COMPANY, OF NORTH TONAWANDA, NEW YORK, ACORPORATION OF NEW YORK.

MUSIC-ROLL.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed December 21, 1912. Serial No. 737,937.

To all whom it may concern Be it known that I, FRANK L. McCon- MICK, acitizen of the United States, residing at North Tonawanda, in the countyof Niagara and State of New York, have invented new and usefulImprovements in Music-Rolls, of which the following is a specification.

This invention relates to the music rolls of automatic musicalinstruments, and more particularly to a roll in which the spool isremovable from the roll, so that the same spool may be used fordifferent rolls, thus saving the cost of a separate spool for each roll.

The object of my invention is the provision of a simple and inexpensivemusic roll of this kind which permits the ready transfer of the spoolfrom one roll to another and in which the flanges are adjustable tocompensate for variations in the width of the music sheet due toatmospheric or climatic influences.

In the accompanying drawings: Figure 1 is a longitudinal section of amusic roll embodying the invention. Fig. 2 is an enlarged side elevationof the spool with its parts separated. Figs. 3 and 4 are cross sectionson the correspondingly numbered lines in Fig. 1.

Similar characters of reference indicate corresponding parts throughoutthe several views.

1 indicates the music roll or perforated sheet which is wound upon andattached to a tube or hollow core 2 of paper or other suitable material.Removably inserted in this core is the spool or spindle 3 which isprovided at one end with the usual clutch wings 4 adapted to interlockwith the clutch member of the driving mechanism, not shown. Mounted onthe spool are the flanges or heads 5 and 6 between which the music sheetis confined and guided. One of these flanges, say the flange 5, may bepermanently secured to the spool and its hub extends into the core 2 andis provided with a key-way or groove 7 which receives a key or lug 8carried by said core, whereby the latter and the music sheet arecompelled to turn with the spool. The hub of the other flange 6 extendsinto the adjacent end of' the core 2 and is provided with an internalkey-way 9 which extends from end to end of the hub and interlocks with akey 10 on the spool, to I compel said hub to rotate with the spool.

Surrounding the spool between a collar or shoulder 11 thereof and theinner end of the hub of the flange 6 is a spring 12 which tendsconstantly to shift said flange outwardly on the spool to increase thedistance between the flanges. The portion of the spool which carries theslidable flange,6 is provided with a screw thread 13 with which engagesan adj usting nut 14 bearing against the outer side of said flange. Uponscrewing the nut 14 toward t-hefixed flange 5, the movable flange 6 isshifted in the same direction, compressing the spring 12, while uponunscrewing the nut more or less, the spring causes the flange 6 tofollow up the nut, increasing the distance between the flanges. In thismanner, the eflective-length of the spool can be readily adjusted tocompensate for warping or shrinkage of the music sheets and preventcrumpling of its edges. To remove the spool from the roll, it is onlynecessary to unscrew the nut 14 from the spool, when the latter with thefixed flange 5 and the spring 12 can be withdrawn from the roll and theother flange 6 and inserted in another roller.

By this construction, one and the same spool can be used for a varietyof music rolls, effecting a material saving in the cost of new rollsafter the purchase of the first one with the spool.

I claim as my invention:

1. The combination of a music roll having a tubular core provided withan internal lug, a screw-threaded spindle removably arranged in saidcore and provided within the same with a key and a shoulder, saidspindle extending throughout the length of the core, a fixed roll-flangeand a slidable roll-flange both mounted on the spindle, the hub of thefixed flange having a groove which receives said lug, the hub of theslidable flange having a groove which receives said key, a springarranged on the inner side of said slidable flange and surrounding thespindle between said shoulder and the hub of the slidable flange, and anadjusting nut applied to the spindle and bearing against the outer sideof the slidable flange.

2. A spool adapted to be removably inserted in a hollow music roll,comprising a screw threaded spindle provided at one end with a fixedflange and near its opposite end With a shoulder and a key, the hub ofsaid adjusting nut engaging the spindle 0n the 10 flange having a grooveadapted to receive a outer side of the slidable flange.

lug of the music roll, a second flange slidably Witness my hand this10th day of Decern' mounted on the opposite end of the spindle ber,1912. and having its hub provided With a key-Way which receives saidkey, a spring arranged on the inner side of said slidable flange andWitnesses: applied to the spindle between said shoulder CARL MAYER, andthe hub of said slidable flange, and an C. F. GEYER.

FRANK L. MCCORMICK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

